Rice-pounder



(No Model.)

R AHM. RIGE POUNDER.

Patented Jan. 25, 1887.

WITNESSES N. PEYEHS. Phnxolithographur. Wnhinginn, o, c.

UNTTED STATES PHILIP RAHM, OF NEW PATENT OFFICE.

ORLEANS, LOUISIANA.

RICE-POUNDER.

SPECIFICATION forming part of Letters Patent No. 356,501, dated January25, 1887.

Application filed Angust lfi, 1886.

To all whom it may concern:

Be it known that I, PHILIP RAHM, of New Orleans, in the parish ofOrleans and State of Louisiana, have invented certain new and usefulImprovements in Rice-Founders; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to an improvement in rice-pounders, the object ofthe same being to provide a ricepounder which will reduce the breakageof the kernels to a minimum and which will rapidly remove the outercuticle.

With these ends in view my invention consists in certain features ofconstruction and combinations of parts, as will be hereinafterdescribed, and pointed out in the claims.

The accompanying drawing is a vertical section taken centrally throughthe pestle and mortar.

A represents a mortar, constructed preferably ot' oval form, its upperend being open to admit of the introduction of the rice. Its bottom a isformed of some hard substance, iron or other suitable metal beingpreferably employed, and its interior upper face is formed in the shapeof a concave cone,with its vertex a in the vertical axis of the mortar.

The pestle-rod b, with the pestle B secured thereto, is adapted to slideup and down in a vertical perforation, 0, extending through the bottomin the line of the vertical axis of the mortar. The lower end of thepestle is convex-shaped, and is adapted to be arrested in its downwardmovement, before it comes into contact with the apex of the cone-shapedconcave bottom, by any approved form of top mechanism.

The etfect which the peculiar-shaped bottom has in agitating the rice issomewhat as follows: The downward pressure exerted on the rice by thepestle causes it (the rice) to separate at the vertex a and slide downthe curved face of the bottom and outwardly and up- Scrial No. 211,286.(No model.)

wardly-along the inside surface of the mortar. As the pestle movesupwardly the rice will. fall into the opening beneath it, to be againdriven along the bottom and up the sides. An effective agitation of thekernels is thus kept up and the cuticle is chafed off in avery shorttime, while the kernels are at the same time prevented from becomingcramped beneath the pestle and the bottom and thereby broken or mashed.

As the bottoms gradually wear out by the constant rubbing of thekernels, it is of some importance that they be made in such shape thatthey may be removed from the mortarcasing and a new one inserted. Thismay be accomplished by forming the mortar-casing complete at the bottomand fitting the coneshaped concave bottom to restsnugly therein, asshown, forming a false bottom, to be removed and replaced by another atpleasure.

It is evident that the bottom might have a lesser or greater curvaturethan that shown, and that the shape of the mortar and pestle might bechanged without departing from the spiritand scope of myinvention; henceI do not wish to limitmyself strictly to the construction herein setforth; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, with the mortar having the removable cone-shapedconcave bottom,of the reciprocating pestle, substantially as set forth.

2. Ina rice-pounder, a mortar provided with a removable cone-shapedconcave bottom, substantially as set forth. v

In testimony whereof I have signed this specification in the presence oftwo subscribiug witnesses.

PHILIP RAHM.

Witnesses:

F. KIROHNER, N. D. HUGHES.

